Question

Solve by using tables. Give each answer to at most two decimal places.

x^2 − 5x + 6 = 0

A, –5, 6
B. 2, –3
C.2, 3
D. –2, –3

Answer 1

I think its b

Answer 2

I think you mixed up a negative sign somewhere...

Answer 3

x^2 - 5x + 6 = 0

Let's try x = 2:
2^2 - 5(2) + 6 = 4 - 10 + 6 = 0 <<<--- correct, so x = 2 is a solution.

For x = -3:
(-3)^2 - 5(-3) + 6 = 9 + 15 + 6 = 30... but obviously 30 is not equal 0, so x = -3 isn't a solution.

Try x = 3 instead...